[Orion] Orion Aux I/O socket

[Richard Hemingway]

My new Orion will arrive this week and I have downloaded the manual. 
I had been using SignaLink SL-1+ with the Jupiter.  I notice that the 
AUX socket on the Jupiter is 5 pin and the Orion is an 8 pin.  I am 
wondering if I can just plug the 5 pin into the Orion 8 pin socket?

The pin out is as follows:

5- pin:				8-pin:

1- audio in			1- audio in
2- ground			2- ground
3- PTT				3- PTT
4- audio out			4- left AUX out ***
5- spare				5- spare
				6- right AUX out
				7- FSK
				8- NC

I will not be using FSK any time soon.  Can I use the "4- left AUX 
out for PSK 31 to the computer??  (BTW what is the difference between 
4 and 6 above??)

Thanks,

Dick, N5XRD